CN114873278A

CN114873278A - Drill chip storage and conveying device

Info

Publication number: CN114873278A
Application number: CN202210571449.8A
Authority: CN
Inventors: 李斌; 张贵磊; 严海源; 向雄; 张明; 石成辉; 吴坤坤
Original assignee: China Oilfield Services Ltd; China National Offshore Oil Corp CNOOC
Current assignee: China Oilfield Services Ltd; China National Offshore Oil Corp CNOOC
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-08-09
Anticipated expiration: 2042-05-24
Also published as: CN114873278B

Abstract

The invention relates to the field of drilling platforms, in particular to a drilling cutting storage and conveying device. The cuttings storage and conveyance device includes: the storage tank body is used for receiving and storing drill cuttings, and a feed inlet is formed above the storage tank body; the bottom cover is positioned at the bottom of the storage tank body, and a discharge port is formed in the bottom cover; a slide positioned above the bottom cap for sliding the drill cuttings stored in the storage tank to gather at the discharge opening and discharge through the discharge opening; the spiral feeding assembly is positioned below the bottom cover, is communicated with the storage tank body through the discharge port and is used for receiving and conveying the drill cuttings discharged from the discharge port; and the driving piece is used for driving the sliding block to do reciprocating motion in the storage tank body and driving the spiral feeding assembly to rotate so as to convey the drill cuttings. Through compact structure, can save the drill chip to when needing to carry the drill chip, carry the drill chip more thoroughly, improve the rate of recovery and the transport efficiency of drill chip.

Description

Drill chip storage and conveying device

Technical Field

The invention relates to the field of drilling platforms, in particular to a drilling cutting storage and conveying device.

Background

During the drilling operation of the offshore platform, drill cuttings in the well bore are brought back to the ground along with the circulation of the drilling fluid. At present, the common method for conveying drill cuttings in the domestic petroleum industry is to convey the drill cuttings to a conveying box through a conveying device, convey the conveying box back to the land, then use a crane to hoist the conveying box, and manually unload the conveying box.

Traditional transmission device does not have the storage function, can only carry out the transport of drill chip, and the defeated workbin does not carry the drill chip function, can't carry the drill chip, and the drill chip rate of recovery is low, and is difficult for unloading.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a drill cutting storage and transportation device capable of storing drill cuttings and transporting drill cuttings more thoroughly, thereby improving the recovery rate and transportation efficiency of drill cuttings.

According to one aspect of the present application there is provided a cuttings storage and transportation apparatus comprising: the storage tank body is used for receiving and storing drill cuttings, and a feed inlet is formed above the storage tank body; the bottom cover is positioned at the bottom of the storage tank body, and a discharge port is formed in the bottom cover; a slider positioned above the bottom cover for gathering the drill cuttings in the storage tank by sliding at the discharge opening and discharging the drill cuttings through the discharge opening; the spiral feeding assembly is positioned below the bottom cover, is communicated with the storage tank body through the discharge port and is used for receiving and conveying the drill cuttings discharged from the discharge port; the driving piece is used for driving the sliding block to do reciprocating motion in the storage tank body and driving the spiral feeding assembly to rotate so as to convey the drill cuttings.

In an alternative mode, the storage tank body and the bottom cover form a circular bottom surface at the bottom of the storage tank body, and the discharge port is positioned in the center of the circular bottom surface; the sliding block is arc-shaped, the arc length of the sliding block is smaller than the arc length corresponding to the diameter of the circular bottom surface, and the sliding block is attached to the edge of the circular bottom surface; the number of the sliding blocks is at least two, and the arc opening direction of each sliding block is different; the driving piece is positioned on the inner wall of the storage tank body and used for driving the sliding block to slide from the bottom edge of the storage tank body to the discharge port.

In an optional mode, the sliding block comprises an outer ring, a plurality of material pushing strips and a connecting strip, and the connecting strip is connected with the inner side of the outer ring through the plurality of material pushing strips to form a hollow structure; the outer ring is used for being abutted against the side wall of the storage tank body; the storage tank body and the bottom cover form a circular bottom surface at the bottom of the storage tank body, and the discharge port is positioned in the center of the circular bottom surface; the outer ring is oval, and the arc length corresponding to the long axis of the outer ring is smaller than the arc length corresponding to the diameter of the round bottom surface; the connecting strip is located the minor axis of outer lane, the expansion end of driving piece is located on the connecting strip of slider, the stiff end with the inner wall of the holding vessel body is fixed, the outer lane with the lateral wall butt part of the holding vessel body is the inclined plane chamfer.

In an alternative mode, at least one material pushing strip can slide along with the sliding block from one side of the material outlet to a first position, and the first position is located at or above the edge of the material outlet.

In an alternative mode, the sliding starting position of the sliding block is a position abutting against the inner wall of the storage tank body.

In an alternative form, the spiral feed assembly comprises: a screw conveyor for receiving the drill cuttings discharged from the discharge opening; the speed reducer is used for controlling the conveying speed of the spiral conveyor; a plurality of cover plates disposed perpendicular to the bottom cover; the cover plate is connected with the bottom cover and used for sealing the spiral conveyor.

In an optional mode, the drill cuttings storage and conveying device further comprises a material sending assembly connected with the spiral feed assembly and used for receiving and conveying the drill cuttings of the spiral feed assembly to an external drill cuttings receiving device; the material distribution assembly comprises a material distribution nozzle, a cleaning nozzle and a material outlet positioned between the material distribution nozzle and the cleaning nozzle, a material conveying pipeline is formed between the material outlet and the external drilling cutting receiving device, and the material distribution nozzle conveys the drilling cutting to the material outlet through compressed gas; and the cleaning nozzle cleans the material conveying pipeline through compressed gas.

In an optional mode, the discharge port is provided with a discharge valve, the discharge valve comprises a shell, an arc valve body is arranged in the shell, and an inflatable air bag is arranged at the joint of the arc valve body and the shell.

In an alternative form, the cuttings storage and transportation apparatus further comprises a gas supply assembly for providing the compressed gas; the air supply assembly comprises a first air inlet pipeline communicated with the storage tank body, a second air inlet pipeline communicated with the material sending nozzle and a third air inlet pipeline communicated with the cleaning nozzle; and a first air inlet valve is arranged on the first air inlet pipeline, a second air inlet valve is arranged on the second air inlet pipeline, and a third air inlet valve is arranged on the third air inlet pipeline.

In an alternative mode, the drill cuttings storage and conveying device further comprises a plurality of weighing sensors and a weighing display, wherein the weighing sensors are located on the outer surface of the bottom of the storage tank body and used for measuring the weight of the drill cuttings in the storage tank body; the weighing display instrument is used for displaying the weight of the drill cuttings in the storage tank body measured by the weighing sensor.

The application provides a drill chip storage conveyor can receive a large amount of offshore drilling platform's drill chip, through the storage tank body storage to can be abundant arrange the material with the internal drill chip of storage jar through the slider in transportation process, be difficult for remaining in storage jar internal, thereby improve the rate of recovery of drill chip, and then improve drill chip transportation quality and efficiency.

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic illustration of a cuttings storage and transportation apparatus according to an embodiment of the present disclosure;

FIG. 2 is a schematic illustration of the configuration of the interior of a skid and a storage tank in a cuttings storage and transportation device according to an embodiment of the present disclosure;

FIG. 3 is a schematic illustration of the configuration of the interior of a skid and a storage tank in a cuttings storage and transportation device according to another embodiment of the present disclosure;

FIG. 4 is a schematic illustration of the configuration of the interior of a skid and a storage tank in a cuttings storage and transportation apparatus provided in accordance with yet another embodiment of the present disclosure;

FIG. 5 is a schematic illustration of the arc length of a shoe in a cuttings storage and transportation device provided in accordance with an embodiment of the present application;

fig. 6 is a schematic view of a sliding position of a sliding block of the cuttings storage and transportation device provided by an embodiment of the present application within a storage tank body;

FIG. 7 is a schematic illustration of an exploded view of a cuttings storage and conveyance apparatus provided in accordance with an embodiment of the present disclosure;

FIG. 8 is a schematic illustration of a material handling assembly of a cuttings storage and transportation apparatus according to an embodiment of the present disclosure;

FIG. 9 is a schematic illustration of a dispensing nozzle in a cuttings storage and transportation device according to an embodiment of the present disclosure;

fig. 10 is a perspective view of a drill cuttings storage and transportation apparatus according to an embodiment of the present application.

The reference numbers in the detailed description are as follows:

100. a cuttings storage and transport device;

110. a storage tank body; 111. a feed inlet; 112. a feed line;

120. a bottom cover; 121. a discharge outlet; 122. a circular bottom surface;

130. a slider; 131. an outer ring; 132. pushing the material strips; 133. a connecting strip; 134. a first position;

140. a spiral feed assembly; 141. a screw conveyor; 142. a screw conveyor housing; 143. a speed reducer; 144. a cover plate; 145. a packing auger;

150. a hair component; 151. a dispensing nozzle; 152. cleaning the nozzle; 153. a discharge port; 154. a discharge valve; 155. a circular arc valve body; 156. inflating the air-tight seal airbag;

160. a drive member; 161. a fixed end; 162. a movable end;

170. weighing sensor

180. A weighing display instrument;

190. a base; 191. a frame; 192. a forklift hole;

200. a control module;

300. a gas supply assembly;

310. a first air intake line; 311. a first intake valve; 320. a second air intake line; 321. a second intake valve; 330. a third air intake line; 331. a third air inlet valve; 340. and (4) exhausting the valve.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

In the process of drilling offshore oil, a large amount of drilling waste is generated, the drilling waste mainly comprises oil-based drill cuttings, belongs to dangerous goods waste and becomes a great difficulty in the processes of collecting, transferring and treating the drill cuttings. The drilling cutting transmission of the offshore oil field mainly depends on a screw conveyor and a drilling cutting box to transmit and transfer drilling cuttings; the drilling fluid waste is returned from a shaft and falls into one end of a screw conveyor through a conveying tank, drilling cuttings are conveyed to the other end through the screw conveyor and fall into a drilling cuttings box below, and after the drilling cuttings box is filled, the drilling cuttings box is lifted to the shore or a transport ship by using a crane. However, there are several problems associated with transporting drill cuttings in this manner: 1. potential safety hazards are easy to occur by adopting a crane transportation mode, the automation degree is low, and the labor cost is high; 2. the traditional rock debris box is a non-closed container, and materials can leak to pollute the box body and the marine environment in the processes of loading, unloading and transporting; 3. due to the offshore long-distance transportation, more screw conveyors are often needed for lapping, the cost is higher, the occupied area of equipment is larger, and the working efficiency of drilling work and drilling cuttings transportation is low.

In view of the above, the present application provides a drill cuttings storage and transportation device, which is placed on a transportation ship and can be fixed on other transportation equipment from an offshore drilling platform to land; the drill chip storage and conveying device is positioned on the offshore drilling platform, when the drill chip storage and conveying device is positioned on the offshore drilling platform, drill chips are stored and loaded into the storage tank body through the feeding hole, and after the transport ship reaches the shore, the drill chip storage and conveying device directly conveys the drill chips to the land in a pneumatic mode without lifting the drill chip storage and conveying device away from the transport ship, so that a large amount of drill chips are collected, stored and transported remotely, and the frequent use of a crane is reduced; and drilling cuttings storage conveyor can be a plurality of side by side or stack on the transport ship, improves drilling cuttings storage capacity and conveying capacity, further improves the transmission efficiency of drilling cuttings. As shown in fig. 1-2, according to one aspect of an embodiment of the present application, there is provided a cuttings storage and conveyance apparatus 100 comprising: a storage tank 110, a bottom cover 120, a slider 130, and a screw feeder assembly 140; the storage tank body 110 is used for receiving and storing drill cuttings, and a feed inlet 111 is arranged above the storage tank body 110; the bottom cover 120 is located at the bottom of the storage tank 110, and a discharge outlet 121 is formed on the bottom cover 120 (see fig. 2); a sliding block 130 is arranged on the bottom cover 120 and used for gathering the drill cuttings in the storage tank body 110 at the discharge opening 121 through sliding and discharging the drill cuttings through the discharge opening 121; a spiral feed assembly 140 positioned below the bottom cover 120 and communicating with the storage tank 110 through the discharge opening 121 for receiving and transporting the cuttings discharged from the discharge opening 121; the drive 160 is used to drive the slide 130 to reciprocate within the storage tank 110 and to rotate the spiral feed assembly 140 to transport the cuttings.

The sliding block 130 is a material pushing component which reciprocates along with the driving of the driving member 160 above the discharge opening 121, and may be a material pushing disc, a material pushing plate or a material pushing strip with any shape, and collects drill cuttings and pushes the drill cuttings out of the discharge opening.

The top of the storage tank body 110 is a dome, the feed inlet is positioned on the dome, and the tank body is cylindrical. Because the drill chip is the waste of water-oil mixture, through storage tank body 110 dome feeding, for the feeding funnel, be difficult for remaining on the inner wall, and can cylindrical tank body capacity be bigger, the drill chip total amount that can receive is bigger. In addition, the storage tank body 110 is connected with the bottom cover 120 to form a flat bottom surface, so that the cuttings can be stored relative to the funnel-shaped or Y-shaped feeding tank, and the storage tank is more easily sealed and prevented from leaking.

The drive member 160 may be driven hydraulically, pneumatically, or electrically, such as by a motor driving the rotation of the spiral feed assembly 140 to effect the conveyance of cuttings.

By adopting the drill cuttings storage device provided by the application, a large amount of drill cuttings of an offshore drilling platform can be received and stored through the storage tank body 110, and the drill cuttings remaining in the storage tank body 110 can be pushed by sliding of the sliding block 130 in the conveying process, so that the drill cuttings in the storage tank body 110 can be completely and sufficiently conveyed to the spiral feeding assembly 140. Thereby improving the recovery rate of the drill cuttings and further improving the transportation quality and efficiency of the drill cuttings.

In one embodiment of the present application, as shown in fig. 2, the storage tank 110 and the bottom cap 120 form a circular bottom surface 122 at the bottom of the storage tank 110, and the discharge opening 121 is located at the center of the circular bottom surface 122; the slider 130 is arc-shaped; the arc length of the sliding block is smaller than the arc length corresponding to the diameter of the circular bottom surface, and the sliding block is attached to the edge of the circular bottom surface; the number of the sliding blocks 130 is at least two, and the arc opening direction of each sliding block 130 is different; the driving member 160 is located on the inner wall of the storage tank 110, and is used for driving the sliding block 130 to slide from the bottom edge of the storage tank 110 to the discharge opening 121.

Because the body of the storage tank 110 is cylindrical, the storage tank 110 and the bottom cover 120 form a flat-bottomed circular bottom surface 122, and the discharge port 121 is a rectangular groove extending from the center of the circular bottom surface 122 to the inner wall of the storage tank 110; specifically, the discharge opening 121 is rectangular, and the long sides of the discharge opening 121 do not abut the edges of the circular bottom surface 122. The cuttings in the storage tank 110 are easily discharged to the spiral feed assembly 140 through the discharge port 121 at the center of the bottom, and the discharge port 121 is not tangent to the circular bottom surface 122, so that the sealing performance of the storage tank 110 and the bottom cover 120 after connection is ensured.

Further, the width of the discharge opening 121 is adapted to the width of the spiral feed assembly 140. Make drill chip completely sealed when carrying to spiral feed assembly 140 through bin outlet 121, be difficult for flowing out in transportation, more environmental protection.

The inner wall of the storage tank body 110 is the inner surface of a cylindrical tank body, the two sliding blocks 130 are arranged on two sides of the long side of the rectangular groove, the sliding blocks 130 are arcs with certain curvature arranged along the edge of the circular bottom surface 122, the arc openings of the two sliding blocks 130 are arranged oppositely, and the sliding blocks 130 are abutted against the inner wall of the storage tank body 110 and completely attached to the shape of the inner wall of the storage tank body 110; the slider 130 slides from the inner wall side of the storage tank 110 toward the discharge port 121, and pushes the cuttings on both sides of the long side of the discharge port 121 on the circular bottom surface 122 to the discharge port 121.

The driving member 160 can simultaneously drive the two sliding blocks 130 to move relatively, so that the drill cuttings remained at the bottom of the storage tank body 110 are pushed to the discharge port 121, and the discharge speed of the storage tank body is increased; the driving members 160 can also respectively drive one of the sliding blocks 130 to return to the initial position after pushing the drill cuttings, and then drive the other sliding block 130 to slide, so as to avoid accidents such as collision and the like caused by simultaneous movement of the two opposite sliding blocks 130.

In another embodiment of the present application, as shown in fig. 3, the sliding blocks 130 may also be a plurality of sliding blocks 130 having different circumferences and the same radian as the circular bottom surface 122, the sliding blocks 130 are distributed on two sides of the long side of the discharge opening 121, the directions of the arc openings of each sliding block 130 are different, in this embodiment, the arc openings of the 4 sliding blocks face the center of the circular bottom surface 122 together, so that the sliding directions of each sliding block are different, and the cuttings remaining at various positions of the circular bottom surface 122 can enter the discharge opening 121 through the sliding of the sliding blocks 130.

In another embodiment of the present application, as shown in fig. 4, the sliding block 130 includes an outer ring 131, a plurality of pushing bars 132, and a connecting bar 133, and the connecting bar 133 is connected with the inner side of the outer ring 131 through the plurality of pushing bars 132 to form a hollow structure; the outer ring 131 is used for abutting against the side wall of the storage tank 110; the storage tank 110 and the bottom cover 120 form a circular bottom surface 122 at the bottom of the storage tank 110, and the discharge opening 121 is located at the center of the circular bottom surface 122; the outer ring 131 is oval, and the arc length corresponding to the long axis of the outer ring 131 is smaller than the arc length corresponding to the diameter of the circular bottom surface 122; the connecting bar 133 is located on the short shaft of the outer ring 131, the movable end 162 of the driving element 160 is located on the connecting bar 133 of the sliding block 130, the fixed end 161 is fixed with the inner wall of the storage tank 110, and the abutting part of the outer ring 131 and the inner wall of the storage tank 110 is an inclined chamfer. The oval shape of the outer ring 131 defines the oval shape of the outer contour of the sliding block 130; the outer ring 131 of the sliding block is used for being abutted against the inner wall of the storage tank body 110, the sliding block 130 slides along the edge of the circular bottom surface 122 when sliding, the outer ring 131 is an inclined chamfer, the sliding block 130 and the inner wall of the storage tank body 110 are protected from being abraded, and the sliding block 130 moves more smoothly.

A plurality of material pushing strips 132 and connecting strips 133 are arranged in the sliding block 130; the short axis of the sliding block 130 is a connecting bar 133 for fixing and supporting the sliding block 130, one end of each of the plurality of pushing bars 132 is connected to the connecting bar 133, and the other end of each of the plurality of pushing bars 132 is connected to the inner side of the outer ring 131, and the plurality of pushing bars 132 are symmetrical to each other with the connecting bar 133 as a symmetry axis, so that the inside of the sliding block 130 is a hollow structure; the hollow part inside the sliding block 130 can reduce the resistance when the sliding block 130 slides, and drill cuttings are easier to gather to the discharge port 121.

Further, referring to fig. 4, the driving member 160 may be a telescopic cylinder fixed on the inner wall of the storage tank 110, and the movable end 162 is located on the connecting bar 133, and the slide block 130 is driven by the telescopic cylinder to reciprocate in the Y direction, where the Y direction is a direction perpendicular to the conveying direction X of the screw conveying and feeding assembly. Of course, the driving member 160 for driving the sliding block 130 to slide may be any driving member 160 such as a lead screw, a slide rail, a worm gear, etc. which can make the sliding block 130 reciprocate in the storage tank 110, and may also be manually controlled.

As shown in FIG. 5, the arc corresponding to the major axis d1 of the slider 130 is the cutting power CD represented by the dotted line, the arc corresponding to the diameter d2 of the circular bottom 122 is the cutting power AB represented by the dotted line, the arc length corresponding to the major axis of the slider 130 is set to be smaller than the arc length corresponding to the diameter of the circular bottom 122, and the length of the cutting power CD needs to be smaller than the length of the cutting power AB. Ensuring that the slider 130 can slide within the circular bottom surface 122 of the storage tank 110 and push any remaining cuttings from the bottom cap 120 to the discharge opening 121.

To ensure that the cuttings remaining on the circular bottom surface 122 can completely enter the spiral feed assembly 140 through the discharge opening 121, as shown in fig. 6, when the sliding block 130 slides, at least one of the material pushing bars 132 can slide with the sliding block 130 to a first position 134, where the first position 134 is located at or above the edge of the discharge opening 121.

Fig. 6 shows the sliding process of the slider 130 on the circular bottom surface 122, which hides the bottom cover 120 and the driving member 160 for the convenience of illustration; taking the material pushing bars 132 filled in the figure with a plurality of material pushing bars 132 as an example, the material pushing bars 132 filled in the figure move along with the slide block 130 from the position of the discharge opening 121 to the position above the discharge opening 121, i.e. the first position 134. It should be noted that the arrow in fig. 6 only shows the position of the slider 130 and the pushing bar 132 in the circular bottom 122 when sliding, and the slider can move from the first position to the third position, or from the third position to the first position, and move back and forth in a circular manner.

With continued reference to fig. 6, the sliding start position of the slider 130 is where it abuts against the inner wall of the storage tank 110.

When the storage tank 110 is fed, the slider 130 needs to abut against the inner wall of the storage tank 110; when the conveying of the drill cuttings is finished, the driving member 160 drives the sliding block 130 to move from the inner wall side of the storage tank 110 to the discharge port 121; taking the sliding block as an example of the embodiment shown in fig. 4, the starting position of the sliding block may be the position of the sliding block in fig. 6, or the position of the sliding block in fig. 6; therefore, when the storage tank body 110 is used for conveying materials, the sliding block can push all drill cuttings in the storage tank body 110 to the discharge port 121, and the drill cuttings are conveyed more thoroughly.

As shown in fig. 1 and 7, the spiral feeding assembly 140 includes a spiral conveyor 141, a speed reducer 143, and a plurality of cover plates 144; the screw conveyor 141 is used for receiving the drill cuttings discharged from the discharge opening 121, the decelerator 143 is used for controlling the conveying speed of the screw conveyor 141, and a plurality of cover plates 144 are perpendicular to the bottom cover 120 and connected to the bottom cover 120 for sealing the screw conveyor 141.

The screw conveyor 141 is a machine that uses a driving motor to drive the auger 145 to rotate spirally and push away drill cuttings to achieve the purpose of conveying. The screw conveyor 141 can convey horizontally, obliquely or vertically, can also convey reversely, has a simple structure, a small cross-sectional area and good sealing performance, and the whole conveying process can be carried out in a sealed groove.

As shown in fig. 7, the screw conveyor 141 includes a housing with a U-shaped opening, and an auger 145 is provided in the housing; and a wear-resistant substrate is arranged between the shell and the packing auger 145 and used for protecting the shell from being worn by the packing auger 145 and prolonging the service life. The U-shaped opening of the screw conveyor 141 is communicated with the discharge opening 121, the notch of the discharge opening 121 has the same area as the U-shaped opening, and the shell is connected with the bottom of the storage tank body 110 to form a sealing structure, so that drill cuttings in the storage tank body 110 are not easy to leak from the discharge opening 121 to the screw conveyor 141; specifically, the spiral feeding assembly 140 is further connected to four sides of the bottom cover 120 through a cover plate 144, and the cover plate 144 is perpendicular to the bottom cover 120, and is used for isolating components such as the driving element 160, the speed reducer 143, and the bearing from the spiral conveyor 141, further sealing the spiral conveyor 141, and preventing the drill cuttings from leaking during the conveying process and causing marine environmental pollution.

As shown in fig. 1 and 8, to avoid frequent use of the crane when the carrier is on shore, the cuttings storage and transportation apparatus 100 further includes a material delivery assembly 150, by which cuttings are pneumatically transported to land. The material-sending component 150 is connected with the spiral material-feeding component 140 and is used for receiving and conveying the drill cuttings of the spiral material-feeding component 140 to an external drill cuttings receiving device; the material dispensing assembly 150 comprises a material dispensing nozzle 151, a cleaning nozzle 152 and a material outlet 153 positioned between the material dispensing nozzle 151 and the cleaning nozzle 152, wherein a material conveying pipeline is formed between the material outlet 153 and an external drill cutting receiving device, and the material dispensing nozzle 151 conveys the drill cuttings to the material outlet 153 through compressed gas; the cleaning nozzle 152 cleans the material conveying pipeline through compressed gas.

The material sending assembly 150 is used for carrying out closed pneumatic conveying on drill cuttings, and the drill cuttings storage and conveying device 100 is assisted in conveying through the combination of concentrated phase pneumatic conveying and the spiral material supply assembly 140, so that the structure is compact, and the occupied space is reduced; reduce the hoist and mount operation when realizing marine remote transmission, avoid the potential safety hazard that crane transportation and artifical unloading brought, promoted drill chip transmission efficiency.

In the conveying process, the drill cuttings pass through the storage tank body 110, the spiral feeding assembly 140 and the material sending assembly 150 and are conveyed to an external drill cuttings receiving device connected with the discharge hole 153 through the material sending nozzle 151, the drill cuttings are all in a sealing structure, and sealed pneumatic conveying is guaranteed while the drill cuttings are prevented from leaking.

Further, as shown in fig. 9, the material distributing nozzle 151 has a stepped double-ring structure in the direction of conveying the drill cuttings by the material distributing assembly 150, and since the volume of the compressed air entering the material distributing nozzle 151 is reduced and the pressure of the compressed air is increased suddenly, a material distributing jet port is formed, and the drill cuttings are conveyed to the discharge port 153; the material sending nozzle 151 adopting the double-ring structure has larger jet force, can realize the transmission of drill cuttings with higher humidity at longer distance, is more suitable for offshore remote transmission, reduces hoisting operation, and thus improves the safety and the working efficiency of drill cuttings transportation.

The drill chip storage and conveying device 100 can be directly connected with an offshore drilling platform to receive drill chips, the solid phase separation of the drill chips is not needed, the drill chips can be powdery or granular solids, and also can be water-containing and oil-containing drill chips, and the drill chips are transmitted to a drill chip treatment plant, drill chip reinjection equipment, drill chip thermal desorption equipment and the like through the drill chip storage and conveying device 100. Due to the water and oil content of the conveyed drill cuttings, the conveying pipeline is easy to block during the conveying process.

Therefore, in order to avoid the blockage of the conveying pipeline and the reduction of the conveying efficiency of the drill cuttings, the material distribution assembly 150 further comprises a cleaning nozzle 152, the material outlet 153 is positioned between the material distribution nozzle 151 and the cleaning nozzle 152, the structure of the cleaning nozzle 152 is the same as that of the material distribution nozzle 151, and the cleaning nozzle 152 is also in a stepped double-ring structure along the direction from the cleaning nozzle 152 to the material outlet 153, so that a narrow channel is formed, and after the compressed gas enters the double-ring cleaning nozzle 151, the volume is reduced and the gas pressure is increased through the suddenly narrowed channel, so that a cleaning jet orifice is formed; the cleaning nozzle 152 purges the discharge port 153 and the conveying pipeline through the cleaning jet orifice, so that the drill cuttings are prevented from being accumulated at the discharge port 153, the conveying pipeline is poor in conveying due to blockage, and the conveying efficiency and the working stability of the drill cuttings storage and conveying device 100 are improved.

In order to further ensure the sealing performance when conveying drill cuttings, the discharge port 153 is provided with a discharge valve 154, the discharge valve 154 comprises a housing, an arc valve body 155 is arranged in the housing, and an inflatable air bag 156 is arranged at the joint of the arc valve body 155 and the housing.

The arc valve body 155 is positioned in the shell, and the inflatable sealing air bag is positioned on the inner wall of the shell; the opening and closing of the discharge hole 153 are realized through the rotation control of the circular arc valve body 155, and the drill cuttings are conveyed to an external drill cuttings receiving device; when the discharge valve is closed, the inflatable sealing air bag 156 is inflated, and the inflatable sealing air bag 156 is expanded and then pressed on the upper surface of the top surface of the circular arc valve body 155, so that the discharge port 153 is sealed; when the discharge valve 154 is to be opened, the inflatable sealing airbag 156 is deflated first, after the inflatable sealing airbag 156 is contracted, the top of the circular arc valve body 155 is separated from the inflatable sealing airbag, a certain gap exists between the circular arc valve body 155 and the inflatable sealing airbag 156, and at the moment, the circular arc valve body 155 rotates to the open position, so that frictionless opening is realized.

The discharge valve 154 adopts a structure that the arc valve body 155 is combined with the inflatable air bag 156, namely, the drill cuttings are in a closed space when the discharge valve is closed, so that the material distributing nozzle 151 can conveniently form a material distributing spray nozzle through compressed gas and transmit the drill cuttings to the discharge hole 153; the cleaning nozzle 152 is convenient to clean the discharge hole 153 and the conveying pipeline by forming a cleaning spray nozzle through compressed gas, so that the blockage of the conveying pipeline is avoided. The arc valve body 155 is easy to jam caused by pretightening force relative to the ball valve, when the arc valve body 155 is used for opening, the arc valve body 155 rotates without contact with the inflatable sealing air bag 156, and the arc valve body 155 rotates to open and close more smoothly; the circular arc valve body 155 has better sealing performance relative to a butterfly valve, the butterfly wing of the butterfly valve is opened and closed in the conveying pipeline, the conveying pipeline is blocked to a certain extent, and the conveying pipeline is a channel after the circular arc valve body 155 is opened, so that the conveying efficiency of drilling cuttings is further improved.

As shown in fig. 1 and 8-10, in an embodiment of the present application, the cuttings storage and transportation apparatus 100 further includes a gas supply assembly 300 for supplying the compressed gas; the air supply assembly 300 comprises a first air inlet line 310 in communication with the storage tank 110, a second air inlet line 320 in communication with the dispensing nozzle 151 and a third air inlet line 330 in communication with the scavenge nozzle 152; the first air inlet pipeline 310 is provided with a first air inlet valve 311, the second air inlet pipeline 320 is provided with a second air inlet valve 321, and the third air inlet pipeline 330 is provided with a third air inlet valve 331.

The air supply assembly 300 provides compressed air for the drilling cuttings storage and conveying device 100, the drilling cuttings storage and conveying device 100 further comprises a control module 200, and the control module 200 controls opening and closing of a plurality of air inlet valves and air outlet valves 340 in the air supply assembly 300 to achieve switching of automatic feeding and automatic conveying of the drilling cuttings storage and conveying device 100, reduce manpower and labor and meet the requirement of environmental protection that drilling cuttings do not fall to the ground.

The control module 200 logically controls the valves on the pipelines to open and close, so that pneumatic transmission is realized. The control module 200 is also used for automatically controlling a feed valve on a feed pipeline 112 connected with the feed port 111 and a discharge valve 154 on the discharge port 153; the driving motor in the automatic control driving member 160 drives the screw feeding assembly 140 to operate, and the telescopic cylinder in the automatic control driving member 160 drives the sliding block 130 to push the drill cuttings to the discharge opening 121. The control module 200 controls the air supply assembly 300 to improve the automation degree of the feeding and conveying operation of the drill chip storage and conveying device 100 and reduce the labor cost; moreover, when the materials are conveyed through the control module 200 and the air supply assembly 300, no rotating part exists in the material conveying process of the material sending assembly, the abrasion is not easy to occur, and the service life is long.

The drill chip storage and conveying device 100 comprises a filling process and a conveying process in practical application, the drill chip storage and conveying device 100 is connected with an offshore drilling platform so as to feed materials, after drill chips enter the storage tank body 110 through the feeding hole 111 and are filled completely, the drill chips are stored in the storage tank body 110, the drill chip storage and conveying device 100 is conveyed to the shore through a transport ship, and the drill chips are output outwards through the spiral feeding assembly 140, the material sending assembly 150 and the discharging hole 153.

Specifically, as shown in fig. 1, the top of the storage tank 110 further includes an exhaust pipe, the exhaust pipe is provided with an exhaust valve 340, and when feeding, the exhaust valve 340 is opened to exhaust the gas in the storage tank 110; during the filling process, the control module 200 controls the exhaust valve 340 to open, controls the first air intake valve 311, the second air intake valve 321, and the third air intake valve 331 to close, and controls the intake valve to open, so that the drill cuttings of the offshore drilling platform are conveyed to the feed port 111 at the top of the storage tank body 110 through the feed pipeline, and the drill cuttings are made to enter the storage tank body 110.

During the transportation process, the control module 200 controls the exhaust valve 340 and the intake valve to close, and controls the driving member 160 to drive the sliding block 130 (refer to fig. 2) to move in the storage tank 110; controlling the first gas supply valve to open, and the gas supply assembly 300 supplies compressed gas into the storage tank 110 through the first gas inlet line 310; the control drive 160 drives the screw conveyor 141 to rotate and convey the drill cuttings to the material dispensing assembly 150; controlling the second air supply valve 321 to open, and supplying compressed air to the material sending nozzle 151 through the second air supply pipeline 320 by the air supply assembly 300, wherein the compressed air forms a material sending injection nozzle through a narrow passage formed by the material sending nozzle 151 with a double-circular-ring structure, and injects the drill cuttings to the discharge hole 153; the control discharge valve 154 is opened and the inflatable sealing bladder 156 is deflated to deliver the cuttings to the external cuttings receiving device.

Cuttings storage and delivery apparatus 100 is also used to clean the conveying lines through cleaning nozzles 152 when the sudden conveying lines are blocked. The dispensing assembly 150 comprises a cleaning nozzle 152, one end of a third air inlet pipeline 330 is connected with the cleaning nozzle 152, the other end of the third air inlet pipeline is connected with a third air inlet valve 331, and the third air inlet valve 331 is opened only when the material conveying pipeline is blocked and needs to be cleaned; during the cleaning process, the control module 200 controls the discharge valve to be closed, the third air inlet valve 331 to be opened, and the compressed air enters the cleaning nozzle 152 to form a large-pressure cleaning spray nozzle through a double-circular-ring structure, so as to purge the drill cuttings blocked in the conveying pipeline.

More specifically, as shown in fig. 10, the cuttings storage and transportation apparatus 100 of the present application further includes a plurality of load cells 170 and a load display 180, wherein the load cells 170 are located on the bottom outer surface of the storage tank 110 for measuring the weight of cuttings in the storage tank 110; the weight display 180 is used to display the weight of cuttings in the storage tank 110 as measured by the load cell 170.

The load cell 170 is a device that converts a mass signal into a measurable electrical signal output. The weight of the drill cuttings in the storage tank 110 is converted into an electrical signal and output to the control module. In the embodiment of the present application, the weighing sensor 170 may be an electronic weighing instrument or a digital weighing instrument, and the method of converting the mass signal may be various methods such as an electromagnetic force type, a capacitance type, a magnetic pole deformation type, and a resistance strain type.

The weighing display instrument is also called as a weighing display control instrument, and is used for converting the signals of the weighing sensors (or through a weight transducer) into weight digital display, displaying the weight of the drill cuttings in the storage tank body 110 detected by the weighing sensors 170, transmitting, storing and counting the weight data of the drill cuttings in the belt, and performing remote correction, parameter configuration, target value loading and real-time monitoring on the running state of the drill cuttings storage and conveying device.

The control module 200 detects the weight of the drill cuttings in the storage tank 110 through the plurality of weighing sensors 170 to obtain the total amount of the drill cuttings in the storage tank 110, and determines whether the drill cuttings storage and conveying device 100 needs to perform feeding filling operation or drill cuttings conveying operation at the moment by combining the total capacity of the storage tank 110; the weighing display instrument 180 is used for displaying the weight of the drill cuttings in the storage tank body 110 detected by the weighing sensor 170, the weighing display instrument 180 can be reset or zero-corrected before feeding or discharging, when the weight of the drill cuttings in the storage tank body 110 is detected to exceed a preset maximum value or a preset minimum value, a display screen flickers, so that workers can know the weight of the drill cuttings in the storage tank body 110 clearly, whether the judgment of the control module 200 on the working state is wrong or not is judged according to the weight of the drill cuttings, and if the judgment of the control module 200 on the working state is wrong, the errors can be found manually in time; if the weight of the drill cuttings in the storage tank body 110 is higher than the preset maximum value as shown on the weighing display instrument 180, it is indicated that the drill cuttings in the storage tank body are close to or reach a full-bin state, at this time, the control module 200 still controls the opening of the feeding valve, the working state of the drill cuttings storage and conveying device 100 is still feeding, it is indicated that the judgment of the control module 200 is wrong, at this time, the working state of the drill cuttings storage and conveying device 100 can be manually adjusted or stopped for maintenance, and the problem is prevented from being found out untimely, so that the drill cuttings storage and conveying device 100 is damaged.

In an embodiment, as shown in fig. 10, the drill cuttings storage and transportation device 100 of the present application further includes a base 190 and a frame 191 for carrying and fixing the drill cuttings storage and transportation device 100, and a forklift opening is provided on the frame 191, and the drill cuttings storage and transportation device 100 may also be connected to a forklift hole 192 on the base 190 through a fork arm of a forklift without a transport ship, so that the entire drill cuttings storage and transportation device 100 is moved to land, such as an onshore drill cuttings processing plant, a drill cuttings re-injection device, and the like, which is adapted to various ways, thereby realizing offshore remote drill cuttings storage and transportation and providing convenience for offshore drill cuttings transportation.

By fixing the storage tank body 110, the spiral feeding assembly, the plurality of air supply pipelines, the air supply assembly 300 and the driving member 160 on the frame 191, the damage to the drill cuttings storage and conveying device 100 caused by accidents such as collision during the transportation of the drill cuttings storage and conveying device 100 is avoided, and the service life of the drill cuttings storage and conveying device 100 is prolonged. And because storage tank body 110 is the dome, the setting of frame 191 can make whole drill chip storage conveyor 100 form the square body to can place a plurality of drill chip storage conveyor 100 side by side, also can stack drill chip storage conveyor 100, reduce equipment area occupied when realizing the marine drill chip transmission of large batch, improve the operating environment in drilling platform or drill chip processing storehouse.

Specifically, the control module 200 may control a plurality of cuttings storage and conveyance devices 100 to perform the feeding and loading operation and the conveyance state simultaneously; when a plurality of storage tank bodies 110 need to be fed, a feeding valve is opened, and drill cuttings are conveyed into the storage tank bodies 110 correspondingly connected with each feeding pipeline through the feeding pipeline; when the storage tank body 110 is found to be approaching or reaching the full state through the weighing sensor and the weighing display instrument 180, the control module 200 changes the drilling cuttings feeding path through the reversing valve, and conveys the drilling cuttings into other storage tank bodies 110.

The drill chip storage and conveying device 100 can convey powder and granular materials through combination of pneumatic conveying and spiral auxiliary pushing, and can convey water-containing and oil-containing materials such as drilling cuttings, especially large-batch long-distance conveying. The drilling cutting storage and conveying device 100 is compact in structure, convenient to install and high in conveying efficiency, is suitable for conveying between an offshore platform and the land, and is also suitable for, but not limited to, materials such as liquid, sticky bodies and solid dust in any form, which need to be stored in a large scale and transported remotely.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A cuttings storage and conveyance apparatus, comprising:

the storage tank body is used for receiving and storing drill cuttings, and a feed inlet is formed above the storage tank body;

the bottom cover is positioned at the bottom of the storage tank body, and a discharge port is formed in the bottom cover;

a slider positioned above the bottom cover for gathering the drill cuttings in the storage tank by sliding at the discharge opening and discharging the drill cuttings through the discharge opening;

the spiral feeding assembly is positioned below the bottom cover, is communicated with the storage tank body through the discharge port and is used for receiving and conveying the drill cuttings discharged from the discharge port;

the driving piece is used for driving the sliding block to do reciprocating motion in the storage tank body and driving the spiral feeding assembly to rotate so as to convey the drill cuttings.

2. The cuttings storage and transportation apparatus of claim 1, wherein the storage tank body and the bottom cap form a circular bottom surface at a bottom of the storage tank body, the discharge outlet being located at a center of the circular bottom surface; the sliding block is arc-shaped, the arc length of the sliding block is smaller than the arc length corresponding to the diameter of the circular bottom surface, and the sliding block is attached to the edge of the circular bottom surface; the number of the sliding blocks is at least two, and the arc opening direction of each sliding block is different;

the driving piece is positioned on the inner wall of the storage tank body and used for driving the sliding block to slide from the bottom edge of the storage tank body to the discharge port.

3. The cuttings storage and transportation apparatus of claim 1, wherein the sliding block comprises an outer ring, a plurality of pushing strips and a connecting strip, and the connecting strip is connected with the inner side of the outer ring through the plurality of pushing strips to form a hollow structure; the outer ring is used for being abutted against the side wall of the storage tank body;

the storage tank body and the bottom cover form a circular bottom surface at the bottom of the storage tank body, and the discharge port is positioned in the center of the circular bottom surface; the outer ring is oval, and the arc length corresponding to the long axis of the outer ring is smaller than the arc length corresponding to the diameter of the round bottom surface;

the connecting strip is located the minor axis of outer lane, the expansion end of driving piece is located on the connecting strip of slider, the stiff end with the inner wall of the holding vessel body is fixed, the outer lane with the lateral wall butt part of the holding vessel body is the inclined plane chamfer.

4. The cuttings storage and transportation apparatus of claim 3, wherein at least one of the push bars is slidable with the slide to a first position at or above the edge of the discharge opening.

5. A cuttings storage and transportation apparatus according to any of claims 2 to 4, wherein the sliding start position of the sliding block is a position abutting against an inner wall of the storage tank.

6. The cuttings storage and transportation apparatus of claim 1, wherein the spiral feed assembly comprises:

a screw conveyor for receiving the drill cuttings discharged from the discharge opening;

the speed reducer is used for controlling the conveying speed of the spiral conveyor;

a plurality of cover plates disposed perpendicular to the bottom cover; the cover plate is connected with the bottom cover and used for sealing the spiral conveyor.

7. The cuttings storage and transportation apparatus of claim 1, further comprising a launch assembly coupled to the spiral feed assembly for receiving and transporting cuttings from the spiral feed assembly to an external cuttings receiving device;

the material distribution assembly comprises a material distribution nozzle, a cleaning nozzle and a material outlet positioned between the material distribution nozzle and the cleaning nozzle, a material conveying pipeline is formed between the material outlet and the external drilling cutting receiving device, and the material distribution nozzle conveys the drilling cutting to the material outlet through compressed gas; and the cleaning nozzle cleans the material conveying pipeline through compressed gas.

8. The cuttings storage and transportation apparatus of claim 7, wherein the discharge port is provided with a discharge valve, the discharge valve comprises a housing, a circular arc valve body is arranged in the housing, and an inflatable air bag is arranged at the joint of the circular arc valve body and the housing.

9. The cuttings storage and transportation apparatus of claim 7 further comprising a gas supply assembly for providing the compressed gas; the air supply assembly comprises a first air inlet pipeline communicated with the storage tank body, a second air inlet pipeline communicated with the material sending nozzle and a third air inlet pipeline communicated with the cleaning nozzle; and a first air inlet valve is arranged on the first air inlet pipeline, a second air inlet valve is arranged on the second air inlet pipeline, and a third air inlet valve is arranged on the third air inlet pipeline.

10. The cuttings storage and transportation apparatus of claim 1 further comprising a plurality of load cells and a load display, the load cells being located on the outer surface of the bottom of the storage tank for measuring the weight of cuttings in the storage tank; the weighing display instrument is used for displaying the weight of the drill cuttings in the storage tank body measured by the weighing sensor.